diff --git a/include/tclap/Arg.h b/include/tclap/Arg.h
index b28eef1..a83e835 100644
--- a/include/tclap/Arg.h
+++ b/include/tclap/Arg.h
@@ -6,7 +6,7 @@
  *
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno .
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ArgException.h b/include/tclap/ArgException.h
index 3411aa9..f789d1c 100644
--- a/include/tclap/ArgException.h
+++ b/include/tclap/ArgException.h
@@ -5,7 +5,7 @@
  *  file:  ArgException.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ArgTraits.h b/include/tclap/ArgTraits.h
index e894d75..8b11453 100644
--- a/include/tclap/ArgTraits.h
+++ b/include/tclap/ArgTraits.h
@@ -5,7 +5,7 @@
  *  file:  ArgTraits.h
  *
  *  Copyright (c) 2007, Daniel Aarno, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/CmdLine.h b/include/tclap/CmdLine.h
index 0fec8d8..f3452bc 100644
--- a/include/tclap/CmdLine.h
+++ b/include/tclap/CmdLine.h
@@ -6,7 +6,7 @@
  *
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/CmdLineInterface.h b/include/tclap/CmdLineInterface.h
index 1b25e9b..cf60f34 100644
--- a/include/tclap/CmdLineInterface.h
+++ b/include/tclap/CmdLineInterface.h
@@ -5,7 +5,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/CmdLineOutput.h b/include/tclap/CmdLineOutput.h
index 71ee5a3..11b8939 100644
--- a/include/tclap/CmdLineOutput.h
+++ b/include/tclap/CmdLineOutput.h
@@ -5,7 +5,7 @@
  *  file:  CmdLineOutput.h
  * 
  *  Copyright (c) 2004, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/Constraint.h b/include/tclap/Constraint.h
index a92acf9..21dc06f 100644
--- a/include/tclap/Constraint.h
+++ b/include/tclap/Constraint.h
@@ -4,7 +4,7 @@
  *  file:  Constraint.h
  *
  *  Copyright (c) 2005, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/DocBookOutput.h b/include/tclap/DocBookOutput.h
index f4ac34d..f023824 100644
--- a/include/tclap/DocBookOutput.h
+++ b/include/tclap/DocBookOutput.h
@@ -5,7 +5,7 @@
  *  file:  DocBookOutput.h
  * 
  *  Copyright (c) 2004, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/HelpVisitor.h b/include/tclap/HelpVisitor.h
index cc3bd07..ee09144 100644
--- a/include/tclap/HelpVisitor.h
+++ b/include/tclap/HelpVisitor.h
@@ -4,7 +4,7 @@
  *  file:  HelpVisitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/IgnoreRestVisitor.h b/include/tclap/IgnoreRestVisitor.h
index e328649..e3e063c 100644
--- a/include/tclap/IgnoreRestVisitor.h
+++ b/include/tclap/IgnoreRestVisitor.h
@@ -4,7 +4,7 @@
  *  file:  IgnoreRestVisitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/MultiArg.h b/include/tclap/MultiArg.h
index 34bb2d7..d478df9 100644
--- a/include/tclap/MultiArg.h
+++ b/include/tclap/MultiArg.h
@@ -4,7 +4,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/MultiSwitchArg.h b/include/tclap/MultiSwitchArg.h
index 8820b64..208d998 100644
--- a/include/tclap/MultiSwitchArg.h
+++ b/include/tclap/MultiSwitchArg.h
@@ -6,7 +6,7 @@
 *  Copyright (c) 2003, Michael E. Smoot .
 *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
 *  Copyright (c) 2005, Michael E. Smoot, Daniel Aarno, Erik Zeek.
-*  All rights reverved.
+*  All rights reserved.
 *
 *  See the file COPYING in the top directory of this distribution for
 *  more information.
diff --git a/include/tclap/OptionalUnlabeledTracker.h b/include/tclap/OptionalUnlabeledTracker.h
index 8174c5f..92f8929 100644
--- a/include/tclap/OptionalUnlabeledTracker.h
+++ b/include/tclap/OptionalUnlabeledTracker.h
@@ -5,7 +5,7 @@
  *  file:  OptionalUnlabeledTracker.h
  * 
  *  Copyright (c) 2005, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/StandardTraits.h b/include/tclap/StandardTraits.h
index 46d7f6f..75c9c64 100644
--- a/include/tclap/StandardTraits.h
+++ b/include/tclap/StandardTraits.h
@@ -5,7 +5,7 @@
  *  file:  StandardTraits.h
  *
  *  Copyright (c) 2007, Daniel Aarno, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  *
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/StdOutput.h b/include/tclap/StdOutput.h
index 944cff4..f224ea2 100644
--- a/include/tclap/StdOutput.h
+++ b/include/tclap/StdOutput.h
@@ -5,7 +5,7 @@
  *  file:  StdOutput.h
  * 
  *  Copyright (c) 2004, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/SwitchArg.h b/include/tclap/SwitchArg.h
index 3916109..c2e8395 100644
--- a/include/tclap/SwitchArg.h
+++ b/include/tclap/SwitchArg.h
@@ -5,7 +5,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/UnlabeledMultiArg.h b/include/tclap/UnlabeledMultiArg.h
index d5e1781..0cf15f9 100644
--- a/include/tclap/UnlabeledMultiArg.h
+++ b/include/tclap/UnlabeledMultiArg.h
@@ -4,7 +4,7 @@
  *  file:  UnlabeledMultiArg.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/UnlabeledValueArg.h b/include/tclap/UnlabeledValueArg.h
index 5721d61..23ab1b9 100644
--- a/include/tclap/UnlabeledValueArg.h
+++ b/include/tclap/UnlabeledValueArg.h
@@ -5,7 +5,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ValueArg.h b/include/tclap/ValueArg.h
index 7ac2952..2f65e4c 100644
--- a/include/tclap/ValueArg.h
+++ b/include/tclap/ValueArg.h
@@ -4,7 +4,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ValuesConstraint.h b/include/tclap/ValuesConstraint.h
index cb41f64..91db53c 100644
--- a/include/tclap/ValuesConstraint.h
+++ b/include/tclap/ValuesConstraint.h
@@ -5,7 +5,7 @@
  *  file:  ValuesConstraint.h
  * 
  *  Copyright (c) 2005, Michael E. Smoot
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/VersionVisitor.h b/include/tclap/VersionVisitor.h
index c110d4f..3ece2f4 100644
--- a/include/tclap/VersionVisitor.h
+++ b/include/tclap/VersionVisitor.h
@@ -5,7 +5,7 @@
  *  file:  VersionVisitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/Visitor.h b/include/tclap/Visitor.h
index 38ddcbd..393320a 100644
--- a/include/tclap/Visitor.h
+++ b/include/tclap/Visitor.h
@@ -4,7 +4,7 @@
  *  file:  Visitor.h
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/XorHandler.h b/include/tclap/XorHandler.h
index d9dfad3..ec00f2a 100644
--- a/include/tclap/XorHandler.h
+++ b/include/tclap/XorHandler.h
@@ -5,7 +5,7 @@
  * 
  *  Copyright (c) 2003, Michael E. Smoot .
  *  Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.
diff --git a/include/tclap/ZshCompletionOutput.h b/include/tclap/ZshCompletionOutput.h
index 0b37fc7..83eca67 100644
--- a/include/tclap/ZshCompletionOutput.h
+++ b/include/tclap/ZshCompletionOutput.h
@@ -5,7 +5,7 @@
  *  file:  ZshCompletionOutput.h
  * 
  *  Copyright (c) 2006, Oliver Kiddle
- *  All rights reverved.
+ *  All rights reserved.
  * 
  *  See the file COPYING in the top directory of this distribution for
  *  more information.